Howtosignalprocessing
- What happens if the sampling rate is too low?
- What is the effect of choosing low sampling rate with respect to Applied signal?
- How does sampling rate affect the signals?
- What happens if analog signal is sampled at less than Nyquist rate?
What happens if the sampling rate is too low?
As the sampling frequency decreases, the signal separation also decreases. When the sampling frequency drops below the Nyquist rate, the frequencies will crossover and cause aliasing.
What is the effect of choosing low sampling rate with respect to Applied signal?
If lower sampling rates are used, the original signal's information may not be completely recoverable from the sampled signal (see Fig. 2). If the sampling frequency is too low, aliasing distortion can result. Aliasing is a major concern when using analog-to-digital conversion.
How does sampling rate affect the signals?
Sampling rate determines the sound frequency range (corresponding to pitch) which can be represented in the digital waveform. The range of frequencies represented in a waveform is often called its bandwidth.
What happens if analog signal is sampled at less than Nyquist rate?
Digital electronics can only work in discrete numbers. To convert an analog wave to a digital signal, it must be measured at a regular frequency, which is the sample rate. If the sample rate is too low, it will not accurately express the original signal and will be distorted, or show aliasing effects, when reproduced.
